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/*******************************************************************************
**
** Filename : util
** Created on : 03 April, 2005
** Copyright : (c) 2005 Till Adam
** Email : <adam@kde.org>
**
*******************************************************************************/
/*******************************************************************************
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** It is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**
** In addition, as a special exception, the copyright holders give
** permission to link the code of this program with any edition of
** the TQt library by Trolltech AS, Norway (or with modified versions
** of TQt that use the same license as TQt), and distribute linked
** combinations including the two. You must obey the GNU General
** Public License in all respects for all of the code used other than
** TQt. If you modify this file, you may extend this exception to
** your version of the file, but you are not obligated to do so. If
** you do not wish to do so, delete this exception statement from
** your version.
**
*******************************************************************************/
#include "util.h"
#include <stdlib.h>
#include <tqcstring.h>
#include <mimelib/string.h>
size_t KMail::Util::crlf2lf( char* str, const size_t strLen )
{
if ( !str || strLen == 0 )
return 0;
const char* source = str;
const char* sourceEnd = source + strLen;
// search the first occurrence of "\r\n"
for ( ; source < sourceEnd - 1; ++source ) {
if ( *source == '\r' && *( source + 1 ) == '\n' )
break;
}
if ( source == sourceEnd - 1 ) {
// no "\r\n" found
return strLen;
}
// replace all occurrences of "\r\n" with "\n" (in place)
char* target = const_cast<char*>( source ); // target points to '\r'
++source; // source points to '\n'
for ( ; source < sourceEnd; ++source ) {
if ( *source != '\r' || *( source + 1 ) != '\n' )
* target++ = *source;
}
*target = '\0'; // terminate result
return target - str;
}
TQCString KMail::Util::lf2crlf( const TQCString & src )
{
TQCString result( 1 + 2*src.size() ); // maximal possible length
TQCString::ConstIterator s = src.begin();
TQCString::Iterator d = result.begin();
// we use cPrev to make sure we insert '\r' only there where it is missing
char cPrev = '?';
while ( *s ) {
if ( ('\n' == *s) && ('\r' != cPrev) )
*d++ = '\r';
cPrev = *s;
*d++ = *s++;
}
result.truncate( d - result.begin() ); // adds trailing NUL
return result;
}
TQByteArray KMail::Util::lf2crlf( const TQByteArray & src )
{
const char* s = src.data();
if ( !s )
return TQByteArray();
TQByteArray result( 2 * src.size() ); // maximal possible length
TQByteArray::Iterator d = result.begin();
// we use cPrev to make sure we insert '\r' only there where it is missing
char cPrev = '?';
const char* end = src.end();
while ( s != end ) {
if ( ('\n' == *s) && ('\r' != cPrev) )
*d++ = '\r';
cPrev = *s;
*d++ = *s++;
}
result.truncate( d - result.begin() ); // does not add trailing NUL, as expected
return result;
}
TQCString KMail::Util::CString( const DwString& str )
{
const int strLen = str.size();
TQCString cstr( strLen + 1 );
memcpy( cstr.data(), str.data(), strLen );
cstr[ strLen ] = 0;
return cstr;
}
TQByteArray KMail::Util::ByteArray( const DwString& str )
{
const int strLen = str.size();
TQByteArray arr( strLen );
memcpy( arr.data(), str.data(), strLen );
return arr;
}
DwString KMail::Util::dwString( const TQCString& str )
{
if ( !str.data() ) // DwString doesn't like char*=0
return DwString();
return DwString( str.data(), str.size() - 1 );
}
DwString KMail::Util::dwString( const TQByteArray& str )
{
if ( !str.data() ) // DwString doesn't like char*=0
return DwString();
return DwString( str.data(), str.size() );
}
void KMail::Util::append( TQByteArray& that, const TQByteArray& str )
{
that.detach();
uint len1 = that.size();
uint len2 = str.size();
if ( that.resize( len1 + len2, TQByteArray::SpeedOptim ) )
memcpy( that.data() + len1, str.data(), len2 );
}
void KMail::Util::append( TQByteArray& that, const char* str )
{
if ( !str )
return; // nothing to append
that.detach();
uint len1 = that.size();
uint len2 = tqstrlen(str);
if ( that.resize( len1 + len2, TQByteArray::SpeedOptim ) )
memcpy( that.data() + len1, str, len2 );
}
void KMail::Util::append( TQByteArray& that, const TQCString& str )
{
that.detach();
uint len1 = that.size();
uint len2 = str.size() - 1;
if ( that.resize( len1 + len2, TQByteArray::SpeedOptim ) )
memcpy( that.data() + len1, str.data(), len2 );
}
// Code taken from TQCString::insert, but trailing nul removed
void KMail::Util::insert( TQByteArray& that, uint index, const char* s )
{
int len = tqstrlen(s);
if ( len == 0 )
return;
uint olen = that.size();
int nlen = olen + len;
if ( index >= olen ) { // insert after end of string
that.detach();
if ( that.resize(nlen+index-olen, TQByteArray::SpeedOptim ) ) {
memset( that.data()+olen, ' ', index-olen );
memcpy( that.data()+index, s, len );
}
} else {
that.detach();
if ( that.resize(nlen, TQByteArray::SpeedOptim ) ) { // normal insert
memmove( that.data()+index+len, that.data()+index, olen-index );
memcpy( that.data()+index, s, len );
}
}
}
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